baber/WOPTO huggingface dataset:
Patent FR-2229772-A1 (FR)
Title: Saw blade heat treatment process - by heating tooth protruding above quenching fluid level
IPC: C21D9/24
Filed: 1973-05-16
Abstract: A heat treatment for saws (cross-cut saws, circular saws or bandsaws) uses tanks filled with oil or water in which the saw blades move along continuously or intermittently. The cutting edge of a tooth coincides with the fluid level or protrudes slightly above it. A flame blown against it heats it to hardening temp. followed by quenching when it is moved cut of the flame action into the fluid. This hardens only the cutting edge so that the base of each tooth retains flexibility. The hard layer is thick enough to allow two or three regrinds of the saw teeth. The life of a blade can thereby be lengthened by a factor of 3-20.
Patent FR-2231832-A1 (FR)
Title: Prefabricated roof decking panels - comprise rectangular frames attached between purlins
IPC: E04B7/22
Filed: 1973-06-01
Abstract: The panel has a rigid rectangular frame which is formed by two side members and two or more crosspieces, preferably in wood, but metal can be used. On the upper part of the frame is fixed, at the factory, either covering panels of laminated glass, metal, etc., or supports for tiles which are put on after erection. Inside the frame is placed insulating material. On the lower face of the frame can be placed a covering sheet for protection against wind and snow or to constitute a ceiling. To form the roof, panels are placed on the roof purlins and attached by cleats fastened to the purlins. Assembly and fixing is easy and can be done by unskilled labour.
Patent FR-2239582-A1 (FR)
Title: Oil well blowout preventer - has elastic seal in longitudinal recess with anti-extrusion device above
IPC: E21B33/06
Filed: 1973-07-30
Abstract: The plunger for preventing the blowout has a movable support (20) with an internal longitudinal recess containing an elastic seal (30) moving inwards into the sealing position, where it is in contact with the drill bit or another plunger. An upper anti-extrusion device (31) is mounted above the seal and moves at least part of the way with it, so as to prevent extrusion of the seal upwards when in the sealing position. A similar lower anti-extrusion device can be mounted below the seal, to prevent extrusion in the other direction.
Patent FR-2254681-A1 (FR)
Title: Paper for hand-rolled cigarettes - having longitudinal strip contg resin and micro-capsules of liq.
IPC: A24D1/02
Filed: 1973-12-14
Abstract: Cigarette paper, has along one of its longitudinal edges, a strip of resin in which are embedded micro capsules of liq. the rupture of which provides an adhesive surface in the region occupied by the strip. In particular, the encapsulated liquid is a solvent ofr the resin or can make this pressure-sensitive as a result of a chemical reaction therewith. The micro-capsules are pref. of dia. 50-500 mu.
Patent FR-2271090-A1 (FR)
Title: Dual cct brake system unbalance indicator - has switch in master cylinder body to actuate warning lamp
IPC: B60T17/22
Filed: 1973-12-20
Abstract: A tandem master cylinder (1) is controlled by a brake pedal (2) to give to independent pressures to the rear (5) and front (6) brakes via pipes (7) (8) and outlets (9) (10) on the master cylinder. In the rear brake pipe (8) is a brake pressure limiting valve (V). A cylinder (11) in the master cylinder body (12) joins to an auxiliary cylinder (13) via radial passages (14) (15) in the outlets (9) (10). There are primary and secondary pistons (16) (17) and a spring (20) and connections (22) (23) with the fluid reservoir (24). A switch (29) is screwed in the body (12) with a contact rod (30) and a moving element (28) and stopper (36) acting on an orifice (31). Unbalance is indicated by a lamp (33).
Patent FR-2259801-A1 (FR)
Title: Non-burning construction material of sandwich structure - comprising cellulosic core bonded to outer layers of incombustible material
IPC: E04C2/284
Filed: 1974-02-06
Abstract: Construction material comprises a core of compressed, non-burning cellulosic material and two exterior incombustible sheets. e.g. of ceramic, slate or metal, which are firmly bonded to the core material by a strong, rapidly-hardening adhesive, which is virtually unaffected by extreme temps. and solvents. The adhesive is pref. based on unsatd. polyester resin. The material is suited to the mfr. of fixed or mobile, flat, curved or irregular panels of all sizes, insulated construction materials, stairways and boat hulls. The sandwich materials have great mechanical strength, absolute dimensional stability, high heat and flame resistance, complete resistant to water and a high resistance to solvents, e.g. acetone, acetates, sulphuric, nitric, hydrochloric and acetic acids, ethanol, petrol, ammonia, CCl4 and sodium hydroxide.
Patent FR-2223465-A1 (FR)
Title: Silicon dioxide binder for ore pellets - giving superior compressive strength to pellets containing metal oxides
IPC: C22B1/16
Filed: 1974-03-28
Abstract: Pellets composed of metal oxide ores or concentrates are given superior compressive strength and abrasion resistance by using as binder the fine dust from the waste gases of furnaces used for the prodn. of Si metal or Si contg. alloys. The dust is mainly composed of SiO2. Pref. SiO2 contg. dust is used in combination with another binder of known type, for example bentonite, sulphite liquor, or molasses.
Patent FR-2267061-A1 (FR)
Title: Shoe insole with plastics envelope - filled with glycerin rearwardly of toe metatarsal heads
IPC: A43B13/38
Filed: 1974-04-10
Abstract: An insole comprises a foot-shaped peripherally welded envelope with >=1 flexible side and having a liquid-filled cavity extending to the heel periphery from a transverse line forward of the metatarsal heads of the toes, except for an empty zone at the area of arch support and sepd. from the cavity by a weld. The insole is pref. of PV C or polyurethane film and the liquid is 5-60 ml glycerine. The zone forward of the transverse line pref. contains foam plastics. Increased comfort is provided to the wearer due to improved foot support.
Patent FR-2278865-A1 (FR)
Title: Large poled tents with guy tied support frame - has bears light guage roof and wall panels and can be erected by one person
IPC: E04H15/18
Filed: 1974-05-24
Abstract: The large poled tents with a guy (11) tied support frame is easily erected with fabric roof and wall panels being suspended from the pre-erected pole and guy structure. Pref. a floor shaped ground sheet (2) is used with cut-outs for location of ground embedded pole receptive sockets; and a gauge cord radiating about poles is used to set out peg locations. Guys are then installed conforming to the cords of the desired tent profile: the use of the gauge cord ensuring that all guys are of equal length etc. Light gauge fabric can be used for walls etc., since these elements do not contribute to tent stability.
Patent FR-2245071-A1 (FR)
Title: Machine movement limit switch - has two push-rod switch and variable position external contact pins
IPC: H01H13/18
Filed: 1974-09-20
Abstract: The travel limiting electric switch has a one-piece case (10) in which is fitted an interlock unit (11) and two push-rod (17) actuated switches (14). The interlock unit (11) is electrically connected to the switches (14) and to the pins (19) of a connector (12). A cover (16) seals the whole. The switches (14) are held against the interlock unit (11) by springs (15). The device may be used to limit travel of moving parts of machines or process equipment. Its construction allows easy installation and setting-up. It can provide various switching functions such as stopping, starting, etc. The switching functions are dependent upon the number and disposition of the contact pins which may be adjustably positioned.
Patent FR-2246823-A1 (FR)
Title: Thermostatically controlled convection heater - air entry flap controls convection flow flap
IPC: F24H9/00
Filed: 1974-09-27
Abstract: A convection heater has a housing (1) with the heater (3) along its base and with a horizontal regulating flap (4) above the heater. A spiral bimetal thermostatic control strip (5) mounted on the end of the flap is housed in a chamber (6) incorporated in one end of the housing. Entry to this chamber is controlled by a blade (10) whose position is determined by another thermostatic control (11). When ambient air temperature is low, the blade allows only cold air to enter the chamber and pass the spiral strip so that the flap opens for maximum heating effect. When the room has become warm, the blade closes the fresh air entry (9) and allows warm air from the heater to pass the spiral strip and after the flap to reduce hot air circulation.
Patent FR-2287314-A1 (FR)
Title: Circular stone saw blade - comprises diamond segments held in place on wheel by dovetail joints
IPC: B24D5/12
Filed: 1974-10-10
Abstract: The blade comprises diamond segments, each of which is held in place by two dovetail sections sliding into engagement with each other, one formed in the segment and the other in the main part of the wheel. A stop limits the amount of sliding movement in one direction. Both the male and female halves can taper in the opposite direction to that in which the blade moves, and they can be brazed or keyed onto the segment and the wheel. The design avoids the need for re-tempering or dressing the blade segments after fitting to the wheel as replacements.
Patent FR-2289090-A1 (FR)
Title: Hearing aid mounted on pair of spectacles - has electro-acoustic transducer which activates inner ear via outer ear cartilage
Inventor: NEEGERS PIERRE
IPC: G02C11/06
Filed: 1974-10-21
Abstract: The hearing aid exploits recent discoveries on the ability of the cartilage or tragus of the outer ear to transmit sound vibrations to the inner ear. The electroacoustic transducer presses on the tragus (42), forming a transmitting path for vibrations, and closing the air passage to the inner ear, thus excluding interference. The microphone and amplifier, housed in an earpiece of a pair of spectacles, drive the transducer which vibrates a plastic sheet (22) which moulded to the shape of the tragus and which is pressed against the tragus by the flexible arm (24).
Patent FR-2298741-A1 (FR)
Title: Reciprocatory motion transmission device - has crank and gear assembly driven by electric motor
IPC: F16H37/12
Filed: 1975-01-23
Abstract: A reciprocatory motion transmission device has an electric motor belt driving a flywheel. On the shaft of the latter is a worm meshing (in a reversible manner) with a worm gear integral with a sleeve turning about a fixed pivot and having a lever arm extension bearing, at its end, a pinion which meshes with a fixed pinion integral with the pivot. On the first pinion is a crank pin with a pivot which acts upon a slide integral with a carriage. With the carriage at one position, the motor is started, and the sleeve rotates and the motor is switched off. The carriage is now at its second position.
Patent FR-2259870-A1 (FR)
Title: Polymer compsns contg ammonium dawsonite - and other aluminous material and having reduced burning rate
IPC: C08K3/00
Filed: 1975-02-10
Abstract: A polymer compsn. of reduced burning rate, as measured by Underwriters Laboratories UL 94 horizontal burning rate test, contains an ammonium dawsonite (NH4al(OH)2CO3) (I) filler compsn. contg. >=50wt.% (I) and an aluminous matl., (I) being distributed in amt. of 15-50wt.% throughout the polymer. The polymer is selected from PVC, polyvinyl acetage, polyarcrylonitrile, polymethacrylate esters, polystyrene, ABS and polyethylene and has a burning rate of 0.7-2.5 ins./min., thermal degradation temp. of >=450 degrees C and a processign temp. 200 degrees C. (I) imparts flame retardancy, decreased smoke density and increased oxygen index to the polymers. The (I) compsn. decomposes endothermically and reduces the temp. of the pryolysis zone during burning. The decompsn. of (I) provides an increased volume of gases i.e., CO2, H2O and NH3 compared to alumina hydrate, thus creating an even more effective barrier to combustion. (I) is more effectively used in polymers of relatively low degradation temp. since it has a lower and more narrow decomposition temp. range.
Patent FR-2313092-A1 (FR)
Title: Mine atmosphere sampler for inflammable gases - has automatic spark produced in enclosed space with explosion triggering alarm
IPC: E21F5/00
Filed: 1975-04-04
Abstract: The atmosphere in deep mines and similar enclosed spaces is sampled automatically before miners descend. A sampling unit is positioned in each relevant area for detecting gas, and measuring its concentration. Each unit comprises a heating or a sparking element, such as a sparking plug or a carbon arc. Alternatively, a laser beam can be used. This element operates intermittently in an enclosed space, after drawing in an ambient air sample. A controlled explosion may burn out a wire, brust a paper or metal foil diaphragm or operate a stress gauge. This, in turn, may be used to activate safety doors or warning devices.
Patent FR-2310555-A1 (FR)
Title: Dynamometric braking device with force sensor - provides signal to control circuit which servoes brake to predetermined speed or torque
IPC: G01L3/22
Filed: 1975-05-06
Abstract: The dynamometric braking device to control a motor or mechanical installation, has a brake (2) which acts on a rotating shaft (4) coupled with the shaft (6) of the motor to be controlled. The casing of the brake may be moved in relation to the frame (1) but is immobilised through the action of a force detector. Thus the speed of the shaft may be controlled, an electronic control circuit enabling the brake to be served to a predetermined speed and/or braking torque. The brake may be electromagnetic in which case its rotor (3a) has an induction winding (33) supplied by the electronic control circuit.
Patent FR-2312914-A1 (FR)
Title: Tomographic X-ray tube trigger circuit - using sensor to detect transition between two zones to trigger tube at given scan point
Inventor: GUILLOIS PATRICK
IPC: A61B6/02
Filed: 1975-05-30
Abstract: The triggering device triggers the X-ray tube of tomograph equipment at a given point n its spiral scan. A first circular element, having a radius equal to or greater than the large radius vector of the scan path, is provided with an active or an inactive zone. The transition between these zones is a circle whose radius is equal to the radius vector of the point on the scan path at which triggering is to take place. The transitions between zones is detected by a sensor (17) which is mounted on a fixed chassis.
Patent FR-2315012-A1 (FR)
Title: Lug and bolt mount for inlet manifold of IC engine - has elastomeric gaskets, bushes and washers insulating manifold from vibration
IPC: F02M35/10
Filed: 1975-06-20
Abstract: The inlet manifold (2) of an i.c. engine is secured to the cylinder head (4) by bolts (20). Each bolt is screwed down against a metal washer (22) and elastic tubular sheath (17). An elastomeric bush (19) with a flanged head (18) is clamped between the metal washer and the cylinder head (4). This bush (19) resiliently supports the inlet manifold (2) and fits through a hole (16) in the lug (15). A gasket (24) is formed from a central metal plate (27) faced with elastomeric material (25, 26) and fits between the surfaces of the cylinder haed (4) and inlet manifold (2). There is thus no direct metallic contact between cylinder head and manifold so that engine vibrations are damped.
Patent FR-2278373-A1 (FR)
Title: Helically wound filter made from roving - wound on under tension and radial pressure without crushing
IPC: B01D29/11
Filed: 1975-07-11
Abstract: A method of making a filter, esp. for a filter cartridge, consists of pretreating a fibrous roving with a hardening agent, then winding the roving helically onto a core and gluing it. Pref., the roving is made sufficiently stiff by the hardening agent to prevent if from being crushed while it is wound on. The hardening agent may be heated to harden it and then dried at a lower temperature; in particular the agent is an epoxy resin which is completely chemically hardened in the final treatment. It may contain a solvent which is evaporated. The hardening may be continued during the winding operation. Before winding on, the roving may be tensioned to stretch it, esp. by passing it during impregnation through a funnel shaped die. A radial pressure may be applied by rollers during winding. During the gluing stage, an axial load is applied to the resultant filter. A stable filter, permitting the passage of particles smaller than the designated size, is obtained.
Patent FR-2319951-A1 (FR)
Title: Cow bell handle or carrier - is of square shape and is rivetted to top of bell together with support for clapper
IPC: G10K1/071
Filed: 1975-08-01
Abstract: The cow bell has a handle or a carrier, allowing the bell to be fixed to a strap, attached to the top of the bell (1). The handle (3) etc is held in place by a rivet (5), which fits through a transverse hole (2) through the top of the bell (1) at its centre, the rivet (5) also used to fix a support element (4) for the clapper in position. The support element (4) has a central bore (41) into which the rivet (5) fits and a cylindrical upper part (42) fitting into the transverse hole (2) in the top of the bell (1), with a cylindrical collar (43) below the upper part abutting the edge of the hole (2). The support ring (45) for the clapper is provided at the bottom of the support element (4).
Patent FR-2286414-A1 (FR)
Title: Positive resist images of poly-alkenyl ketones - made by irradiation by light or electron beams
Inventor: GIPSTEIN EDWARD
IPC: G03F7/039
Filed: 1975-08-07
Abstract: Production of an image on a high-resolution radiation sensitive positive resist material, by comprises (1) applying a film of a poly-(alpha-lower-alkenyl ketone) on a substrate (2) irradiating in a pre-determined pattern, and (3) treating the film with a solvent for the breakdown product formed in the irradiated areas. Used in mfr. of integrated printed circuits, printing plates etc. Post hardening of the photo-resist image is not required. The image has a high resolution, below the film thickness e.g. 0.5 um lines with the same separation can be obtained in 1 um films.
Patent FR-2335692-A1 (FR)
Title: Double vane rotary hydraulic actuator - has single piece seal for all vane edges and for shaft
IPC: F01C19/10
Filed: 1975-12-18
Abstract: The rotor (4) of a rotary hydraulic actuator is provided with two diametrically opposed vanes (3) and ends (7) of reduced diameter to suit the bearings. A single piece sealing element (11) fits in grooves in both the radial and longitudinal edges of the vanes (3). In addition, the rectangular sections of the seal are joined by ring section (6) which fit in circular grooves in the shoulders of the rotor (4). The use of a single piece sealing element (11) eliminates the possibility of the type of leak which occurs at the joint between separate sealing elements. This type of sealing elements can also be applied equally well to pneumatic rotary actuators.
Patent FR-2302350-A1 (FR)
IPC: C23C28/00
Filed: 1976-02-26
Abstract: The article of use or jewellery is provided with a layer of TiN mechanically resistant material. To increase the strength, the surface area is exposed to a gas mixture of TiCl4, H2 and N2, for example for 40 minutes at 1000 DEG C. The layer of TiN mechanically resistant material can be polished to a high gloss using Al2O3 powder.
Patent FR-2345092-A1 (FR)
Title: Filter tip or holder for cigarette smoke - has rigid ball held in bore with fluted sides to cause turbulent flow and deposition of tars
IPC: A24D3/04
Filed: 1976-03-23
Abstract: The filter is used to purify cigarette smoke and trap the tar and liquid constituents. It can be fitted into a filter tip forming part of the cigarette itself, or incorporated in a cigarette holder. The body (1) of the filter is rigid and has a circular bore (2, 2'). At the cigarette end (5), this has straight fluted channels (3), cut into the circumference. A rigid ball (4) is inserted into this portion being a force fit and held by elasticity. The profile of the channels is a segment of a circle and, for maximum efficiency a definite relationship must be held between all dimensions.
Patent FR-2314943-A1 (FR)
Title: Lance with thermal insulation and refractory coating - for sulphur removal from molten iron using magnesium powder in carrier gas
Inventor: PETRUSHKA ROBERT GEORGE
IPC: C21C1/06
Filed: 1976-06-15
Abstract: Lance for injecting a mixt. of reactant particles and a carrier gas into molten iron for the removal of sulphur, using a long pipe is new. The mixt. is fed along a long pipe directly covered with a layer of internal insulation (1), thick enough to prevent the particles melting and reacting with the carrier gas; insulation (1) is directly surrounded by a rigid pipe (2) which is coated with a refractory layer (3) resistant to erosion when in contact with the melt, and thick enough to prevent the particles from melting and reacting with the carrier gas. The lance is pref. bent at 30-45 degrees and used for conveying Mg, its alloys or its cpds. using N2 as the carrier. The temp. is the lance during use should not exceed 425 degrees c., and the lance has a life of 5 to 8 immersions, each of 15-25 minutes duration, much longer than conventional lances.
Patent FR-2358500-A1 (FR)
Title: Clamp for two parallel adjacent strands of strop - comprises two plates bolted together, each with two parallel grooves
IPC: B66C1/12
Filed: 1976-07-13
Abstract: Clamp for holding together two parallel adjacent strands of a strop and for forming two end loops consists of two plates bolted together. Each plate has two parallel semicylindrical grooves for receiving the ends of the strands two outwardly diverging semi-toroidal grooves extending the semi-cylindrical grooves, and two diverging semicylindrical grooves extending the semi-toroidal grooves towards an end loop of the strop. When the strop is tensioned, it acts in the semi-toroidal grooves like a cable in a pulley groove and moves the two plates of the clamp apart. Thus the strop is not compressed and cannot slide in the clamp, and the clamp does not need to be unbolted for correct balancing of tensions by adjusting the length of the strands.
Patent FR-2359006-A1 (FR)
Title: Slidable vehicle seat locking device - has spring biassed finger which extends through aperture in slide block and registering hole in rail extension
IPC: B60N2/08
Filed: 1976-07-23
Abstract: The vehicle sliding seat support has two slide rails, each having a number of locking holes. A slider mounted on the seat is movable along each rail by rollers. Each slider carries an element defining an extension parallel and close to the side of the rail with the locking holes. The extension has an aperture with a shape corresponding to the locking holes, a spring on each slider holding a pin in position through the aperture and a selected locking hole. Each locking pin is pref. an elastic element fixed to each slider.
Patent FR-2322679-A1 (FR)
Title: Sheet metal light fitting component assembly - has edges of opening of lower component pressed against friction strip of upper component
IPC: F16B5/00
Filed: 1976-09-02
Abstract: The assembly of two sheet-metal components which overlap, being particularly for light fittings, uses a friction strip (1211) on the upper component (121) fitted in an opening (110) in the lower component (11). The faces (112) of the opening are forced against those of the strip which fit in it. The portions of the strip passing through the opening can be at an angle of at least 40 and preferably 60 deg. to the plane of the upper component. The strip can be so thrust into the opening as to close it.